Reclaimed water reuse treatment device

Abstract

The utility model relates to the technical field of water treatment, and discloses a reclaimed water reuse treatment device which comprises a main water inlet pipe, an oxidation device, a filtering device, a disinfection device and a main water outlet pipe which are sequentially communicated, the oxidation device comprises a reaction tank body communicated with the main water inlet pipe and an ozone generator for providing ozone for the reaction tank body, a water outlet pipe of the reaction tank body is communicated with the filtering device, and the ozone generator comprises an air compressor, a gas storage tank, an oil-water separator, an air filter, a refrigeration dryer, a suction dryer, a generator gas inlet pipe, a generator body, a reaction tank gas inlet pipe, an ozone concentration meter, a gas flow meter and the like; after sewage in the reclaimed water reuse treatment system is subjected to multiple purification, organic matters, impurities and turbidity are fully filtered and improved, and continuous disinfection of hypochlorous acid is matched, so that the disinfection is more thorough, the biological safety is higher, and the quality of the obtained reclaimed water is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a reclaimed water reuse treatment device. Background Technique

[0002] In recent years, with the adjustment of China's agricultural structure and the promotion of agricultural industrialization, large-scale and intensive livestock and poultry breeding industries have developed rapidly and become an important part of China's rural economy; however, the development of these farms has, on the one hand, met the large demand of urban residents for meat and poultry eggs, but also become an important pollution source of polluted water bodies; the annual sewage discharge from livestock and poultry breeding in China exceeds 10 billion tons, and the nitrogen, phosphorus, antibiotics (such as sulfonamides, macrolides and tetracyclines) and heavy metals (copper, arsenic, zinc, lead and nickel, etc.) contained in the sewage generated by livestock and poultry breeding are pollutants with low concentration but high harm, posing a huge potential threat to human health.

[0003] The water in the sewage station of the farm has a lot of organic matter, impurities, bacteria and viruses. If directly discharged, it will cause a greater burden on the natural environment, or if directly used as irrigation water, the bacteria and viruses in it will damage the crops, or if directly reused, but there are still more bacteria and viruses in the treated water, and there will be a greater risk of biosafety in direct reuse; so farms generally treat sewage, filter impurities, remove organic matter and disinfect, but after sewage treatment, the polluted impurities are not removed cleanly, the residual amount of organic matter is large, and the viruses and bacteria in the water still exist, and it cannot reach qualified reclaimed water for reuse, so a reclaimed water reuse treatment system is hereby proposed to treat sewage to obtain qualified reclaimed water for reuse again.

[0004] Therefore, we propose a reclaimed water reuse treatment device to solve the problems raised above. Content of the Utility Model

[0005] The purpose of the utility model is to provide a reclaimed water reuse treatment device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a reclaimed water reuse treatment device, including a main inlet pipe, an oxidation device, a filtering device, a disinfection device and a main outlet pipe connected in sequence. The oxidation device includes a reaction tank body connected to the main inlet pipe, an ozone generator for supplying ozone to the reaction tank body, and the outlet pipe of the reaction tank body is connected to the filtering device. The ozone generator includes an air compressor, an air storage tank, an oil-water separator, an air filter, a cold dryer, a desiccant dryer, a generator inlet pipe, a generator body, a reaction tank inlet pipe, an ozone concentration meter, a gas flow meter, etc. The main inlet pipe is connected to the reaction tank body, the outlet pipe of the ozone generator is connected to the reaction tank body, and the reaction tank body is connected to the filtering device through a reaction tank outlet pipe;

[0007] The filtering device includes an inclined plate packing for removing large particulate impurities and suspended matters in water, a quartz sand filter medium for removing small particulate impurities and colloids in water, and a level gauge A arranged above the quartz sand filter medium. The filtering device is communicated with the water outlet pipe of the reaction tank body. A filtered water outlet pipe is arranged on one side of the filtering device, and the filtered water outlet pipe is communicated with the disinfection device;

[0008] The disinfection device includes a hypochlorous acid disinfection device and a first pipeline mixer. The oxidation device, the filtering device, the first pipeline mixer and the main water outlet pipe are communicated in sequence, and the hypochlorous acid disinfection device is communicated with the first pipeline mixer.

[0009] Preferably, the oxidation device includes an ozone generator and a reaction tank body. The water inlet and outlet of the reaction tank body are respectively communicated with the main water inlet pipe and the filtering device.

[0010] Preferably, the ozone generator further includes an air compressor and an air storage tank for providing an air source, an oil-water separator, an air filter, a cold dryer and a desiccant for purifying the air source, and an ozone concentration meter and a gas flow meter for gas detection.

[0011] Preferably, a first flow meter is arranged on the water pipe communicated between the filtering device and the first pipeline mixer.

[0012] Preferably, the disinfection device includes a soft water tank, a soft water outlet pipe, a water supply pump, a second flow meter, a mixing device, a hypochlorous acid solution tank, a chemical dosing pump. The hypochlorous acid production device is communicated with the mixing device through a hypochlorous acid outlet pipe. The hypochlorous acid solution tank is communicated with the mixing device through a mixing outlet pipe, and the first pipeline mixer is communicated with the medicine outlet of the chemical dosing pump.

[0013] Preferably, the mixing device includes a jet pump, a pH meter and a second pipeline mixer which are communicated in sequence. The water supply pump and the hypochlorous acid production device are both communicated with the jet pump, and the second pipeline mixer is communicated with the hypochlorous acid solution tank.

[0014] Preferably, the hypochlorous acid production device includes an electrolyte tank, an electrolyte addition pump and an electrolytic cell which are communicated in sequence. The electrolytic cell is communicated with the jet pump, and an electrolyte outlet pipe is arranged on the electrolyte tank.

[0015] Preferably, a third flow meter and a control valve are arranged on the water pipe communicated between the chemical dosing pump and the first pipeline mixer.

[0016] Preferably, level gauges B are respectively installed on the soft water tank, the electrolyte tank and the hypochlorous acid solution tank.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. Sewage enters the oxidation device from the main inlet pipe, and most of the organic matters are removed. Then, after passing through the filtration device, the impurities in the water body are filtered, and finally, the water body is disinfected by the disinfection device to obtain the treated reclaimed water for reuse, which is used for deodorization and flushing the livestock houses in livestock breeding. Specifically, the sewage enters the oxidation device from the main inlet pipe in sequence. The oxidation device adopts ozone oxidation. Ozone can effectively oxidize organic substances, decompose them into inorganic substances and carbon dioxide, rapidly reduce the organic substances. After the oxidation reaction, it passes through the filtration device to remove particulate impurities and colloids in the sewage, making the turbidity of the water lower than 5 degrees, thus meeting the turbidity requirements of the specified drinking water. After the sewage is oxidized and filtered, the organic matters, impurities and turbidity in it are all fully filtered and improved.

[0019] 2. The disinfection device is connected to the filtration device and is used to disinfect the filtered water. The hypochlorous acid solution is injected into the first pipeline mixer through the hypochlorous acid disinfection device to be mixed with the filtered water, ensuring that the residual chlorine concentration is 2 - 6 PPM, creating a continuous disinfection environment, inhibiting the growth of bacteria and viruses, and preventing secondary pollution of the water quality. After the filtered water is continuously disinfected by the hypochlorous acid disinfection device, the disinfection is more thorough, and thus the biological safety of the obtained reclaimed water is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the water reuse treatment system of the present utility model.

[0021] In the figure: 1. Main inlet pipe; 2. Oxidation device; 21. Reaction tank body; 22. Generator body; 23. Reaction tank inlet gas pipe; 24. Gas flowmeter; 25. Ozone concentration meter; 26. Generator inlet gas pipe; 27. Desiccant; 28. Air filter; 29. Refrigerated dryer; 210. Gas storage tank; 211. Air compressor; 3. Reaction tank outlet pipe; 4. Filtration device; 41. Inclined plate packing; 42. Quartz sand filter media; 43. Level gauge A; 5. Filtered water outlet pipe; 6. First flowmeter; 7. First pipeline mixer; 8. Main outlet pipe; 9. Disinfection device; 91. Soft water tank; 92. Soft water outlet pipe; 93. Feed water pump; 94. Second flowmeter; 95. Injector; 96. PH meter; 97. Second pipeline mixer; 98. Mixed water outlet pipe; 99. Hypochlorous acid solution tank; 910. Electrolyte tank; 911. Level gauge B; 912. Electrolyte outlet pipe; 913. Electrolyte addition pump; 914. Electrolytic cell; 10. Hypochlorous acid outlet pipe; 11. Chemical dosing pump; 12. Third flowmeter; 13. Control valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the protection scope of the present utility model.

[0023] Embodiment 1: Please refer to Figure 1 , a reclaimed water reuse treatment device, which includes a main inlet pipe 1, an oxidation device 2, a filtration device 4, a disinfection device 9, and a main outlet pipe 8 that are connected in sequence. The oxidation device 2 includes a reaction tank body 21 connected to the main inlet pipe 1, an ozone generator that provides ozone to the reaction tank body 21. The outlet pipe of the reaction tank body 21 is connected to the filtration device 4. The ozone generator includes an air compressor 211, a gas storage tank 210, an oil-water separator, an air filter 28, a cold dryer 29, a desiccant dryer 27, a generator inlet pipe 26, a generator body 22, a reaction tank inlet pipe 23, an ozone concentration meter 25, a gas flow meter 24, etc. The main inlet pipe 1 is connected to the reaction tank body 21, and the outlet pipe of the ozone generator is connected to the reaction tank body 21. The reaction tank body 21 is connected to the filtration device 4 through a reaction tank outlet pipe 3.

[0024] The filtration device 4 includes a lamella packing 41 for removing large particulate impurities and suspended solids in water, a quartz sand filter medium 42 for removing small particulate impurities and colloids in water, and a liquid level gauge A43 arranged above the quartz sand filter medium 42. The filtration device 4 is connected to the outlet pipe of the reaction tank body 21. A filtered water outlet pipe 5 is arranged on one side of the filtration device 4, and the filtered water outlet pipe 5 is connected to the disinfection device 9.

[0025] The disinfection device 9 includes a hypochlorous acid disinfection device and a first pipe mixer 7. The oxidation device 2, the filtration device 4, the first pipe mixer 7, and the main outlet pipe 8 are connected in sequence. The hypochlorous acid disinfection device is connected to the first pipe mixer 7. The hypochlorous acid solution is injected into the first pipe mixer 7 through the hypochlorous acid disinfection device to be mixed with the purified water, ensuring that the residual chlorine concentration is 2 - 6 PPM, creating a continuous disinfection environment, inhibiting the growth of bacteria and viruses, preventing secondary water pollution, and continuously disinfecting the filtered water through the hypochlorous acid disinfection device 9, so that the reclaimed water obtained has higher biological safety.

[0026] The oxidation device 2 includes an ozone generator and a reaction tank body 21. The water inlet and outlet of the reaction tank body 21 are respectively connected to the main inlet pipe 1 and the filtration device 4.

[0027] The ozone generator further includes an air compressor 211 and an air storage tank 210 for providing an air source, an oil-water separator for purifying the air source, an air filter 28, a refrigerated dryer 29, and a desiccant dryer 27, as well as an ozone concentration meter 25 and a gas flow meter 24 for gas detection.

[0028] A first flow meter 6 is provided on the water pipe connecting the filtering device 4 and the first pipe mixer 7.

[0029] In this embodiment: Sewage enters the oxidation device 2 from the main water inlet pipe 1 to purify the organic matter in the water body, and then enters the filtering device 4. After filtering the impurities in the water body, the water is then disinfected by the disinfection device 9 to obtain the treated reclaimed water for reuse in livestock farming. Specifically, the sewage enters the oxidation device 2 from the main water inlet pipe 1 to remove the organic matter in the water, and then passes through the filtering device 4. The inclined plate packing 41 is used to remove large particle impurities and suspended solids in the sewage, controlling the impurities in the water below 50um. The quartz sand filter media 42 is used to remove small particle impurities in the water and adsorb the colloids in the water, thereby further filtering the water and reducing the turbidity of the water below 5 degrees, thus meeting the turbidity requirements of the specified drinking water. After the sewage undergoes oxidation and filtration, the organic matter, impurities, and turbidity in it are all fully filtered and improved. The oxidation device 2 is ozone oxidation. First, the air in the air compressor 212 is pressed into the air storage tank 211, and then passes through the oil-water separator 210 and the air filter 28 to remove the oil mist and dust in the air. The purified air passes through the refrigerated dryer 29 to lower the air temperature, and the cooled air passes through the air filter 28 again to ensure that there is no dust in the air. Finally, the desiccant dryer 27 removes the moisture in the air. The purified air passes through the generator body 22 through the generator inlet pipe 26. Inside the generator body 22, the oxygen in the air is converted into ozone. The ozone enters the reaction pool body 21 through the reaction pool inlet pipe 23, and the ozone production is monitored and controlled by the gas flow meter 24 and the ozone concentration meter 25. The ozone entering the reaction pool body 21 undergoes an oxidation reaction with the sewage, decomposing the organic matter into carbon dioxide, water, and corresponding oxidation products.

[0030] Embodiment 2: This embodiment is an improvement made on the basis of Embodiment 1. Specifically, please refer to Figure 1 , the disinfection device 9 includes a soft water tank 91, a soft water outlet pipe 92, a water supply pump 93, a second flow meter 94, a mixing device, a hypochlorous acid solution tank 99, and a dosing pump 11. A hypochlorous acid production device is connected to the mixing device through a hypochlorous acid outlet pipe 10. The hypochlorous acid solution tank 99 is connected to the mixing device through a mixing outlet pipe 98. The first pipe mixer 7 is connected to the medicine outlet of the dosing pump 11.

[0031] The mixing device includes a jet ejector 95, a pH meter 96, and a second pipeline mixer 97 that are connected in sequence. The feed water pump 93 and the hypochlorous acid production device are both connected to the jet ejector 95. The second pipeline mixer 97 is connected to the hypochlorous acid solution tank 99. The jet ejector 95 is used to mix purified water and electrolytically generated chlorine gas to form a hypochlorous acid solution. The second pipeline mixer 97 is connected to the jet ejector 95, which can ensure the uniform mixing of softened water and chlorine gas, thereby forming a uniform hypochlorous acid solution. The mixed hypochlorous acid solution is output into the hypochlorous acid solution tank 99 for storage. The available chlorine concentration in the hypochlorous acid solution tank 99 is 100 PPM.

[0032] The hypochlorous acid production device includes an electrolyte tank 910, an electrolyte addition pump 913, and an electrolytic cell 914 that are connected in sequence. The electrolytic cell 914 is connected to the jet ejector 95, and an electrolyte outlet pipe 912 is provided on the electrolyte tank 910. The electrolyte tank 910 is used to store the electrolyte. The electrolyte used in this application is hydrochloric acid. During electrolysis, the electrolyte in the electrolyte tank 910 is pumped out by the electrolyte addition pump 913 and then transported into the electrolytic cell 914 for electrolysis to generate chlorine gas. The chlorine gas production process is simple and then enters the jet pipe through the suction action of the jet pipe and is mixed with softened water to form a hypochlorous acid solution. The whole process is simple and convenient.

[0033] A third flow meter 12 and a control valve 13 are provided on the water pipe connecting the chemical dosing pump 11 and the first pipeline mixer 7. The third flow meter 12 can record the output volume of the hypochlorous acid passing through, and then cooperate with the control valve 13 to jointly control the liquid output volume of the hypochlorous acid entering the first pipeline mixer 7, so as to facilitate adjusting the liquid output volume of the hypochlorous acid and ensuring the disinfection effect of the filtered sewage.

[0034] Liquid level gauges B911 are respectively installed on the soft water tank 91, the electrolyte tank 910, and the hypochlorous acid solution tank 99. The liquid level gauges B911 can monitor the solution inventory in the hypochlorous acid solution tank 99, the electrolyte tank 910, and the soft water tank 91, facilitating the user to observe the solution inventory therein.

[0035] In this embodiment: The soft water tank 91 is used to connect to an external water source and then pumped out by the feed water pump 93. At the same time, the hypochlorous acid solution and soft water in the hypochlorous acid production device enter the mixing device simultaneously. After being mixed by the mixing device, the diluted hypochlorous acid solution is input into the hypochlorous acid solution tank 99 for storage, and then pumped out by the chemical dosing pump 11 and fed into the first pipeline mixer 7 to be mixed with the filtered water to continuously disinfect the water. The above-mentioned hypochlorous acid solution is prepared by electrolysis while filtering the sewage, and the available chlorine concentration in the water can be guaranteed, thereby ensuring the effective disinfection of the sewage.

[0036] Working principle: Sewage enters the oxidation device 2 from the main inlet pipe 1 to purify the organic matter in the water body, and then enters the filtration device 4. After filtering the impurities in the water body, the water is then disinfected by the disinfection device 9 to obtain the treated reclaimed water for reuse in livestock farming. Specifically, sewage enters the oxidation device 2 from the main inlet pipe 1 to remove the organic matter in the water. Then, it passes through the filtration device 4. The inclined plate packing 41 is used to remove large particle impurities and suspended solids in the sewage, controlling the impurities in the water below 50um. The quartz sand filter medium 42 is used to remove small particle impurities in the water and adsorb the colloid in the water, thereby further filtering the water and reducing the turbidity of the water to below 5 degrees, thus meeting the turbidity requirements of the specified drinking water. After the sewage undergoes oxidation and filtration, the organic matter, impurities, and turbidity in it are fully filtered and improved. The oxidation device 2 is an ozone oxidation device. First, the air in the air compressor 212 is pressed into the gas storage tank 211, and then passes through the oil-water separator 210 and the air filter 28 to remove the oil mist and dust in the air. The purified air passes through the cold dryer 29 to reduce the air temperature. The cooled air passes through the air filter 28 again to ensure that there is no dust in the air. Finally, the moisture in the air is removed by the desiccant dryer 27. The purified air passes through the generator body 22 through the generator inlet pipe 26. Inside the generator body 22, the oxygen in the air is converted into ozone. The ozone enters the reaction tank body 21 through the reaction tank inlet pipe 23, and the ozone production is monitored and controlled by the gas flow meter 24 and the ozone concentration meter 25. The ozone entering the reaction tank body 21 reacts with the sewage oxidatively to decompose the organic matter into carbon dioxide, water, and corresponding oxidation products. The soft water tank 91 is used to connect to an external water source and is then pumped out by the water supply pump 93. At the same time, the hypochlorous acid solution in the hypochlorous acid production device and the soft water enter the mixing device simultaneously. After being mixed by the mixing device, the diluted hypochlorous acid solution is input into the hypochlorous acid solution tank 99 for storage, and then pumped by the dosing pump 11 and supplied into the first pipe mixer 7 to be mixed with the filtered water for continuous disinfection of the water. The above-mentioned hypochlorous acid solution is prepared by electrolysis while the sewage is being filtered, and the concentration of available chlorine in the water can be guaranteed, thereby ensuring the effective disinfection of the sewage.

[0037] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0038] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A reclaimed water reuse treatment device, comprising a main water inlet pipe (1), an oxidation device (2), a filtering device (4), a disinfection device (9) and a main water outlet pipe (8) which are connected in sequence, characterized in that: The oxidation device (2) comprises a reaction tank body (21) connected to a main water inlet pipe (1), an ozone generator for supplying ozone to the reaction tank body (21), a water outlet pipe of the reaction tank body (21) connected to a filtering device (4), the ozone generator comprising an air compressor (211), an air storage tank (210), an oil-water separator, an air filter (28), a cold dryer (29), a desiccant (27), a generator air inlet pipe (26), a generator body (22), a reaction tank air inlet pipe (23), an ozone concentration meter (25), and a gas flow meter (24), the main water inlet pipe (1) and the reaction tank body (21) are connected, the ozone generator air outlet pipe is connected to the reaction tank body (21), and the reaction tank body (21) is connected to the filtering device (4) via the reaction tank water outlet pipe (3); The filtering device (4) comprises an inclined plate filler (41) for removing large particle impurities and suspended matter in water, a quartz sand filter material (42) for removing small particle impurities and colloids in water, and a liquid level gauge A (43) arranged above the quartz sand filter material (42), which are connected in sequence. The filtering device (4) is connected to the water outlet pipe of the reaction tank body (21). A filtering water outlet pipe (5) is arranged on one side of the filtering device (4), and the filtering water outlet pipe (5) is connected to the disinfection device (9); The disinfection device (9) comprises a hypochlorous acid disinfection device and a first pipeline mixer (7); the oxidation device (2), the filtering device (4), the first pipeline mixer (7) and the main water outlet pipe (8) are connected in sequence; and the hypochlorous acid disinfection device is connected to the first pipeline mixer (7).

2. A reclaimed water reuse treatment device according to claim 1, characterized in that: The oxidation device (2) comprises an ozone generator and a reaction tank body (21); a water inlet and a water outlet of the reaction tank body (21) are respectively connected to the main water inlet pipe (1) and the filtering device (4).

3. A reclaimed water reuse treatment device according to claim 1, characterized in that: The ozone generator further comprises an air compressor (211) and an air storage tank (210) for providing an air source, an oil-water separator, an air filter (28), a cold dryer (29) and an adsorption dryer (27) for purifying the air source, and an ozone concentration meter (25) and a gas flow meter (24) for gas detection.

4. A reclaimed water reuse treatment device according to claim 1, characterized in that: A first flow meter (6) is provided on the water pipe communicating between the filtering device (4) and the first pipeline mixer (7).

5. The reclaimed water reuse treatment device according to claim 1, characterized in that: The disinfection device (9) comprises a soft water tank (91), a soft water outlet pipe (92), a water supply pump (93), a second flow meter (94), a mixing device, a hypochlorous acid solution tank (99), and a dosing pump (11) which are connected in sequence. A hypochlorous acid production device is connected to the mixing device via a hypochlorous acid outlet pipe (10). The hypochlorous acid solution tank (99) is connected to the mixing device via a mixing outlet pipe (98). The first pipeline mixer (7) is connected to a drug outlet of the dosing pump (11).

6. A reclaimed water reuse treatment device according to claim 5, characterized in that: The mixing device comprises an ejector (95), a pH meter (96) and a second pipeline mixer (97) which are connected in sequence; the water supply pump (93) and the hypochlorous acid production device are both connected to the ejector (95); and the second pipeline mixer (97) is connected to the hypochlorous acid solution tank (99).

7. A reclaimed water reuse treatment device according to claim 6, characterized in that: The hypochlorous acid production device comprises an electrolyte tank (910), an electrolyte addition pump (913), and an electrolytic cell (914) which are connected in sequence; the electrolytic cell (914) is connected to the ejector (95); and an electrolyte water outlet pipe (912) is provided on the electrolyte tank (910).

8. The reclaimed water reuse treatment device according to claim 5, characterized in that: A third flow meter (12) and a control valve (13) are provided on the water pipe communicating between the dosing pump (11) and the first pipeline mixer (7).

9. A reclaimed water reuse treatment device according to claim 7, characterized in that: Liquid level meters B (911) are respectively installed on the soft water tank (91), the electrolyte tank (910) and the hypochlorous acid solution tank (99).

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